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https://hackaday.com/2022/08/03/next-floor-geosynchronous-satellites-orbiting-laboratories/ | Next Floor: Geosynchronous Satellites, Orbiting Laboratories | Al Williams | [
"Space"
] | [
"graphene",
"space elevator"
] | On Star Trek, if you want to go from one deck to another, you enter a “turbolift” and tell it where you want to go. However, many people have speculated that one day you’ll ride an elevator to orbit instead of using a relatively crude rocket. The idea is simple. If you had a tether anchored on the Earth with the other ... | 40 | 15 | [
{
"comment_id": "6500131",
"author": "HaHa",
"timestamp": "2022-08-04T04:45:29",
"content": "China says…bullshit. They can’t schedule breakthroughs any more than we can.A Martian moon tether is doable. But why? You could jump off (almost).",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,372,609.840936 | ||
https://hackaday.com/2022/08/03/nvidia-unleashes-the-first-jetson-agx-orin-module/ | NVIDIA Unleashes The First Jetson AGX Orin Module | Tom Nardi | [
"Artificial Intelligence",
"News"
] | [
"JetPack SDK",
"Nvidia Jetson",
"Orin",
"SO-DIMM"
] | Back in March, NVIDIA introduced Jetson Orin, the next-generation of their ARM single-board computers intended for edge computing applications. The new platform promised to deliver “server-class AI performance” on a board small enough to install in a robot or IoT device, with even the lowest tier of Orin modules offeri... | 15 | 8 | [
{
"comment_id": "6500083",
"author": "NS",
"timestamp": "2022-08-03T23:40:10",
"content": "I will use it with GPT3, and see if it can seduce old men/women into sending me money. It would pay for itself faster than a Bitcoin minner. It would learn from its own output, out to the point of becoming the... | 1,760,372,609.906034 | ||
https://hackaday.com/2022/08/03/hackable-20-modem-combines-lte-and-pi-zero-w2-power/ | Hackable $20 Modem Combines LTE And Pi Zero W2 Power | Arya Voronova | [
"Android Hacks",
"hardware",
"how-to",
"Tech Hacks"
] | [
"3g modem",
"lte modem",
"MSM8916",
"qualcomm",
"WiFi modem"
] | [extrowerk]
tells us about a new hacker-friendly device
– a $20 LTE modem stick with a quadcore CPU and WiFi, capable of running fully-featured Linux distributions. This discovery hinges on a mountain of work by a Chinese hacker
[HandsomeYingYan]
, who’s figured out this stick runs Android,
hacked its bootloader,
tweak... | 188 | 50 | [
{
"comment_id": "6500044",
"author": "HackJack",
"timestamp": "2022-08-03T20:21:04",
"content": "He can run gcc on that stick. I am totally not expecting that.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6500172",
"author": "hallo1",
"time... | 1,760,372,611.246976 | ||
https://hackaday.com/2022/08/03/hackaday-prize-2022-a-hefty-hoverboard-rover/ | Hackaday Prize 2022: A Hefty Hoverboard Rover | Danie Conradie | [
"Robots Hacks",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"aluminum extrusions",
"hoverboard",
"rover"
] | Popular consumer products often become the basis of many hacker projects, and hoverboards are a good example of this. [Tanguy] is using the drivetrain from a pair of hoverboards to
build a beefy little rover platform with independent suspension
.
Since hoverboards were designed to move around fully grown humans, the mo... | 7 | 2 | [
{
"comment_id": "6500015",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-08-03T18:38:35",
"content": "So, other than buying a Hoverboard, where does one obtain the motors, by pushing kids off their boards and tossing it in the back seat?",
"parent_id": null,
"depth": 1,... | 1,760,372,610.078812 | ||
https://hackaday.com/2022/08/03/the-hackaday-summer-camp-survival-guide/ | The Hackaday Summer Camp Survival Guide | Jenny List | [
"cons",
"Hackaday Columns",
"Lifehacks",
"Original Art",
"Slider"
] | [
"BornHack",
"cccamp",
"electromagnetic field",
"emf",
"hacker camps",
"MCH2022",
"sha2017"
] | It’s a feature of summer for us, the round of hacker camps in which members of our community gather in fields and spend a few days relaxing and doing what we do best. This summer I’ll have been to four of them by September, one of which was unexpected because a last-minute ticket came my way. For Hackaday they’re a cha... | 19 | 9 | [
{
"comment_id": "6499991",
"author": "Michael Black",
"timestamp": "2022-08-03T17:36:37",
"content": "No list of clothing to take, and the need to mark each item with your name?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6500050",
"author": "The ... | 1,760,372,610.216988 | ||
https://hackaday.com/2022/08/03/saving-fuel-with-advanced-sensors-and-an-arduino/ | Saving Fuel With Advanced Sensors And An Arduino | Ryan Flowers | [
"Arduino Hacks",
"car hacks"
] | [
"arduino",
"automotive",
"ecu",
"megasquirt",
"o2 sensor",
"speeduino"
] | When [Robot Cantina] isn’t busy tweaking the 420cc
Big Block
engine in their Honda Insight, they’re probably working on some other completely far out automotive atrocity. In the video below the break, you’ll see them take the concept of a ‘lean burn’ system from the Insight and
graft
hack it into their 1997 Saturn coup... | 37 | 14 | [
{
"comment_id": "6499953",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-08-03T15:35:57",
"content": "But won’t lean burn ruin an engine that is not designed for it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6499960",
"auth... | 1,760,372,610.034228 | ||
https://hackaday.com/2022/08/01/never-too-rich-or-thin-compress-sqlite-80/ | Never Too Rich Or Thin: Compress Sqlite 80% | Al Williams | [
"Software Hacks"
] | [
"compression",
"database",
"sqlite"
] | We are big fans of using SQLite for anything of even moderate complexity where you might otherwise use a file. The advantages are numerous, but sometimes you want to be lean on file storage. [Phiresky] has a great answer to that: the sqlite-zstd extension offers
transparent row-level compression for SQLite
.
There are ... | 11 | 5 | [
{
"comment_id": "6499407",
"author": "ziggurat29",
"timestamp": "2022-08-02T02:14:08",
"content": "interesting. the WSPR spots (from WSPRnet) db for 2021 in SQLite is 340 GB, but 37 GB when 7zip compressed. It will be interesting to see if this helps a bit. A lot of that are indices I added, and ... | 1,760,372,609.964494 | ||
https://hackaday.com/2022/08/01/opendendrometer-can-measure-how-your-tree-feels/ | OpenDendrometer Can Measure How Your Tree Feels | Danie Conradie | [
"Tool Hacks"
] | [
"automated plant care",
"botany",
"fruit trees"
] | There are various ways to measure plant health, and we’ve seen many projects creating open-source solutions. One we haven’t seen is a dendrometer, which involves measuring various physical dimensions of trees to track their health and growth. [John Opsahl] is changing this with the
OpenDendrometer
, a tool for tracking... | 12 | 7 | [
{
"comment_id": "6499428",
"author": "echodelta",
"timestamp": "2022-08-02T04:02:52",
"content": "No tree hugers on HaD? This is a tree huger and that what what it’s about, it measures the tree’s happiness .Could be used in Kinsey Institute type studies too.",
"parent_id": null,
"depth": 1,
... | 1,760,372,610.261832 | ||
https://hackaday.com/2022/08/01/simple-propulsion-for-the-lazy-paddle-boarder/ | Simple Propulsion For The Lazy Paddle Boarder | Danie Conradie | [
"Transportation Hacks"
] | [
"boat",
"electric drill",
"marine propulsion"
] | One of the downsides to healthy outdoor activities is all the exercise. Who would want to do that if you can build something to do the hard work for you? That seems to be the theme of [Bitluni]’s latest build, a simple (and hacky)
propulsion system for a stand-up paddleboard
.
After acquiring an inflatable stand-up pad... | 14 | 9 | [
{
"comment_id": "6499339",
"author": "Or just buy one if you really want to be lazy.",
"timestamp": "2022-08-01T21:38:40",
"content": "Battery powered drill and water typically do not get along. Though you could probably make an IP67 rated, battery powered drill if you really wanted to.",
"paren... | 1,760,372,610.378869 | ||
https://hackaday.com/2022/08/01/scavenging-cds-for-flexible-parts/ | Scavenging CDs For Flexible Parts | Bryan Cockfield | [
"chemistry hacks"
] | [
"acetone",
"biosensor",
"cd",
"flexible",
"gold",
"nature",
"sensor"
] | CDs are becoming largely obsolete now, thanks to the speed of the internet and the reliability and low costs of other storage media. To help keep all of this plastic out of the landfills, many have been attempting to find uses for these old discs. One of the more intriguing
methods of reprurposing CDs was recently publ... | 42 | 14 | [
{
"comment_id": "6499299",
"author": "Ostracus",
"timestamp": "2022-08-01T19:23:52",
"content": "“CDs are becoming largely obsolete now, thanks to the speed of the internet and the reliability and low costs of other storage media.”Are USB drives so cheap we can give them to complete strangers withou... | 1,760,372,610.1556 | ||
https://hackaday.com/2022/08/01/ask-hackaday-what-was-your-first-electronics-win/ | Ask Hackaday: What Was Your First Electronics Win? | Dan Maloney | [
"Hackaday Columns",
"Rants",
"Slider"
] | [
"beginner",
"hacking",
"newbie",
"starting",
"win"
] | Back in high school, I joined the stage crew — because of course I did. As student theater groups go, it was pretty active, and with two shows to produce each year, there was always a lot of work to do. I gravitated to the lighting crew, which was a natural fit for me. Besides the electrical part of the job, there was ... | 74 | 49 | [
{
"comment_id": "6499225",
"author": "mayhem",
"timestamp": "2022-08-01T17:14:56",
"content": "My first electronics hack didn’t involve electronics. It was a battery. I was about 7-8 years old and dad’s car kept cranking slower and slower on start up. This was the age of “maintenance free” batteries... | 1,760,372,610.518642 | ||
https://hackaday.com/2022/08/01/r2home-is-ready-to-bring-back-your-high-altitude-payload/ | R2Home Is Ready To Bring Back Your High Altitude Payload | Danie Conradie | [
"drone hacks"
] | [
"arduino",
"Autopilot",
"high altitude balloon",
"parachute"
] | With high-altitude ballooning, you are at the mercy of the winds, which can move your payload hundreds of kilometers and deposit it in some inaccessible spot. To solve this
[Yohan Hadji] created R2Home
, an autonomous parachute-based recovery system that can fly a payload to any specified landing site within its glidin... | 23 | 6 | [
{
"comment_id": "6499214",
"author": "NQ",
"timestamp": "2022-08-01T16:21:15",
"content": "This is really cool. You can hopefully keep your payloads from ending up in trees, highways, etc. It seems to make more sense than casting your lots to the wind and seeing where it ends up.",
"parent_id"... | 1,760,372,610.586251 | ||
https://hackaday.com/2022/08/01/dead-spider-becomes-robot-gripper-its-necrobotics/ | Dead Spider Becomes Robot Gripper: It’s Necrobotics! | Lewin Day | [
"Featured",
"Interest",
"Misc Hacks",
"Robots Hacks",
"Slider"
] | [
"necrobotics",
"robotics",
"spider",
"spiders"
] | Robot arms and grippers do important work every hour of every day. They’re used in production lines around the world, toiling virtually ceaselessly outside of their designated maintenance windows.
They’re typically built out of steel, and powered by brawny hydraulic systems. However, some scientists have gone for a sma... | 46 | 21 | [
{
"comment_id": "6499169",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-08-01T14:14:46",
"content": "Galvani did it first with frog legs.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6499193",
"author": "Judy",
"times... | 1,760,372,610.772978 | ||
https://hackaday.com/2022/08/01/re-creating-the-unique-look-of-unobtainable-aerochrome-film/ | Re-Creating The Unique Look Of Unobtainable Aerochrome Film | Donald Papp | [
"how-to",
"Science"
] | [
"Aerochrome",
"film",
"infrared",
"NDVI",
"NIR",
"photography"
] | Ever heard of Aerochrome? It’s a unique type of color infrared film, originally created for the US military and designed for surveillance planes. Photos taken with Aerochrome film show trees and other vegetation in vivid reds and pinks, creating images that aren’t quite like anything else.
A modified method of trichrom... | 23 | 8 | [
{
"comment_id": "6499143",
"author": "Chris",
"timestamp": "2022-08-01T13:07:30",
"content": "I’ve got some trichrome’d Rollei infrared and Superpan 400 awaiting development, probably with the same filter set!If digital is your thing, there’s a few good methods as well. Most start with modifying you... | 1,760,372,610.680722 | ||
https://hackaday.com/2022/08/01/self-hosted-pi-pico-development/ | Self-Hosted Pi Pico Development | Jenny List | [
"Raspberry Pi",
"Software Development"
] | [
"c compiler",
"Paspberry Pi Pico",
"pi pico",
"vi"
] | Older readers and those with an interest in retrocomputing may remember the days when a computer might well have booted into a BASIC interpreter. It was simultaneously a general purpose device that could run any software it would load, and also a development environment. Not something that can be said for today’s devel... | 31 | 14 | [
{
"comment_id": "6499085",
"author": "jpa",
"timestamp": "2022-08-01T08:22:45",
"content": "Hmm, if I understand this correctly, it doesn’t actually compile C to ARM machine code, but to some interpreted bytecode?Interesting exercise, but micropython might be more effective in practice.",
"paren... | 1,760,372,610.844111 | ||
https://hackaday.com/2022/07/31/trippy-bicycle-uses-multiple-partial-wheels/ | Trippy Bicycle Uses Multiple Partial Wheels | Danie Conradie | [
"Transportation Hacks"
] | [
"bicycle rims",
"bicycle wheel",
"the q"
] | Bicycles need at least two wheels to be rideable, but [The Q] realized you don’t necessarily need the wheels to be in one piece. As long as you have at least two points of rolling contact with the ground, you can spread the load across multiple partial wheels. He demonstrated this by
splitting the rear wheel of his bik... | 18 | 14 | [
{
"comment_id": "6499044",
"author": "TacticalNinja",
"timestamp": "2022-08-01T05:16:22",
"content": "That’s a cool bike you got there",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6499053",
"author": "mime",
"timestamp": "2022-08-01T05:57:04",
"c... | 1,760,372,611.041624 | ||
https://hackaday.com/2022/07/31/industrial-robot-repurposed-to-make-smores/ | Industrial Robot Repurposed To Make S’Mores | Ryan Flowers | [
"Robots Hacks"
] | [
"Industrial robot",
"marshmallow",
"microwave",
"pneumatic actuator",
"SMORES"
] | It’s summer time in the Northern Hemisphere, and that means campfires for cooking hot dogs, keeping the mosquitoes away, and of course, making s’mores. For our far-flung friends, that’s a fire roasted marshmallow and a square of chocolate smashed between two graham crackers. So called because when you’re done, you’ll w... | 14 | 6 | [
{
"comment_id": "6499018",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-08-01T02:22:47",
"content": "“Easy on that oven door! You don’t want to break it! ”B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6499033",
"author": "Paul ... | 1,760,372,610.933203 | ||
https://hackaday.com/2022/07/31/hackaday-links-july-31-2022/ | Hackaday Links: July 31, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"china",
"deceleration",
"diving",
"drm",
"hackaday links",
"Long March",
"model S",
"russia",
"soviet",
"tesla",
"Venera",
"venus"
] | Don’t look up! As of the time of this writing, there’s a decent chance that
a Chinese Long March 5B booster has already completed its uncontrolled return to Earth
, hopefully safely. The reentry prediction was continually tweaked over the last week or so, until the consensus closed in on
30 Jul 2022 at 17:08 UTC
, give... | 12 | 9 | [
{
"comment_id": "6498990",
"author": "Bret Tschacher",
"timestamp": "2022-07-31T23:48:10",
"content": "I just saw that on my phone news posting today. I’m wondering now that I have seen the post about the falling object over TX. the other day, if that was from the booster or a meteor? I watched it o... | 1,760,372,611.295185 | ||
https://hackaday.com/2022/07/31/hackaday-prize-2022-an-eastern-bloc-nes-clone/ | Hackaday Prize 2022: An Eastern Bloc NES Clone | Bryan Cockfield | [
"Nintendo Hacks",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"clone",
"eastern europe",
"emulator",
"famicom",
"iron curtain",
"nes",
"nintendo"
] | If Nintendo is known for anything outside of their characters and admittedly top-notch video games, it’s being merciless to fans when it comes to using their intellectual property. They take legal action against people just for showing non-Nintendo hardware emulating games of theirs, and have even attempted to shut dow... | 8 | 4 | [
{
"comment_id": "6498980",
"author": "Mog",
"timestamp": "2022-07-31T22:58:06",
"content": "If these are the same chips that were used in the Dendy and other NES clones of the time, it’s worth mentioning that while it can play nearly every Famicom cartridge around, it can’t necessarily do it well. S... | 1,760,372,610.982639 | ||
https://hackaday.com/2022/07/31/adding-perlin-noise-to-3d-printed-parts-with-python/ | Adding Perlin Noise To 3D Printed Parts, With Python | Donald Papp | [
"3d Printer hacks",
"Software Hacks"
] | [
"cad",
"Perlin noise",
"python",
"stl"
] | Want to add a bit of visual flair to 3D printed parts that goes maybe a little more than skin-deep? That’s exactly what [volzo] was after, which led him to create
a Python script capable of generating a chunk of Perlin noise, rendered as an STL file
. What does that look like? An unpredictably-random landscape of hills... | 16 | 8 | [
{
"comment_id": "6498966",
"author": "gleonard3",
"timestamp": "2022-07-31T20:53:24",
"content": "Can this technique be used to apply a wood grain finish? That would be sweet.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498970",
"author": "ziggu... | 1,760,372,611.436347 | ||
https://hackaday.com/2022/08/02/the-rollercoaster-of-developing-the-ultimate-hackable-keyboard/ | The Rollercoaster Of Developing The Ultimate Hackable Keyboard | Danie Conradie | [
"Peripherals Hacks"
] | [
"mechanical keyboard",
"RGB LEDs",
"rp2040",
"zack freedman"
] | When designing anything with “hackable” in the punchline, scope creep is an integral part of the process. You end up trying to create something to potentially be an infinite number of things for an infinite number of users. [Zack Freedman] is going really deep down the rabbit hole with his
MiRage keyboard
and has been ... | 14 | 5 | [
{
"comment_id": "6499657",
"author": "Stappers",
"timestamp": "2022-08-02T18:50:56",
"content": "FWIWhttps://github.com/TeXitoi/keyberonA rust crate to create a pure rust keyboard firmware.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6499691",
"au... | 1,760,372,611.490772 | ||
https://hackaday.com/2022/08/02/toyotas-cartridge-helps-make-hydrogen-portable/ | Toyota’s Cartridge Helps Make Hydrogen Portable | Lewin Day | [
"Current Events",
"Featured",
"Original Art",
"Science",
"Slider"
] | [
"Canister",
"fuel",
"fuels",
"hydrogen",
"hydrogen canister",
"Jerry can",
"portable fuel"
] | Hydrogen has long been touted as the solution to cleaning up road transport. When used in fuel cells, the only emissions from its use are water, and it eliminates the slow recharging problem of battery-electric vehicles. It’s also been put forth as a replacement for everything from natural gas supplies to laptop batter... | 139 | 26 | [
{
"comment_id": "6499604",
"author": "MrSVCD",
"timestamp": "2022-08-02T17:19:41",
"content": "Here is to a government mandated standard so things can get going.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6499693",
"author": "Kelly Jones",
... | 1,760,372,611.667448 | ||
https://hackaday.com/2022/08/02/homemade-sawstop-attachment-is-just-about-as-sketchy-as-it-sounds/ | Homemade SawStop Attachment Is Just About As Sketchy As It Sounds | Dan Maloney | [
"Tool Hacks"
] | [
"Amputation",
"brake",
"electromagnetic clutch",
"hot dog",
"pyrotechnic",
"safety",
"saw",
"sawstop",
"table saw"
] | TL;DR — when [Colin Furze] is your “safety inspector,” you really should be reconsidering your project goals.
Most of us have probably by now seen the SawStop brand of self-stopping table saw, which detects when something meatier than wood has the bad taste to touch the spinning blade, more or less instantly stopping i... | 56 | 11 | [
{
"comment_id": "6499578",
"author": "Nathan",
"timestamp": "2022-08-02T15:48:57",
"content": "I thought when they first came out that Sawstop was an attachment/retrofit to other table saws, and as they grew and developed/sold their own model they discontinued the attachment version.Do they license ... | 1,760,372,611.762248 | ||
https://hackaday.com/2022/08/02/mutually-crafted-happiness-how-mch2022-happened/ | Mutually Crafted Happiness: How MCH2022 Happened | Arya Voronova | [
"cons",
"Hackaday Columns",
"Slider"
] | [
"hacker camp",
"hacker camps",
"MCH",
"MCH2022"
] | Just a few days ago,
MCH2022,
a six day long hacker camp in Netherlands, has concluded – bringing about three thousand hackers together to hang out. It was my first trip to a large hacker camp like this, as I’ve only been to smaller ones, and this story is coming from someone who’s only now encountering the complexity ... | 16 | 5 | [
{
"comment_id": "6499565",
"author": "mh",
"timestamp": "2022-08-02T14:25:07",
"content": "This was really a super cool event! (Well, during the days, it was actually hot)Thanks a lot to all who helped make it happen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_i... | 1,760,372,611.836673 | ||
https://hackaday.com/2022/08/02/the-gametank-is-the-latest-and-greatest-8-bit-game-console/ | The GameTank Is The Latest And Greatest 8-bit Game Console | Robin Kearey | [
"Games",
"Retrocomputing"
] | [
"6502",
"emulator",
"game console"
] | The NES, Atari 2600, the Apple II, the Commodore 64 and the TurboGrafx-16 are just some of the many game consoles and home computers built around the 6502 CPU. And while the 6502 has been pretty much obsolete since the mid-’90s, that hasn’t stopped hackers from building new systems with it in the 21st century. Today we... | 16 | 8 | [
{
"comment_id": "6499520",
"author": "Stappers",
"timestamp": "2022-08-02T11:29:16",
"content": "Mmm, the case has two buttons, the PCB has three. Seems to me that reset button, the middle, is not user accessable.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,372,611.90069 | ||
https://hackaday.com/2022/08/02/hoverboard-powered-sofa-is-fun-and-a-bit-dangerous/ | Hoverboard Powered Sofa Is Fun And A Bit Dangerous | Danie Conradie | [
"Toy Hacks",
"Transportation Hacks"
] | [
"couch",
"hoverboard",
"wii nunchuck"
] | Discarded hoverboards are a great source of free high torque motors for hacking. This can include crazy but fun projects like this
hoverboard-driven IKEA sofa
, as demonstrated by [Bitluni] and his friends at xHain Hackerspace in Berlin.
With a couple of dead hoverboards in various conditions and a working e-bike batte... | 8 | 4 | [
{
"comment_id": "6499494",
"author": "lukealexdavis",
"timestamp": "2022-08-02T09:05:52",
"content": "So happy that the sofa from the Virtual Insanity video found a new lease of life",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6499556",
"author": "Ellio... | 1,760,372,612.021302 | ||
https://hackaday.com/2022/08/01/combat-gets-a-computer-controlled-opponent/ | CombatGets A Computer Controlled Opponent | Tom Nardi | [
"classic hacks",
"Games"
] | [
"atari",
"atari 2600",
"combat",
"launch game"
] | If you ever spent some time playing on the Atari 2600, there’s an excellent chance you went through a few rounds of
Combat
. The two-player warfare game not only came with the console but was actually one of the more technically impressive titles for the system, offering nearly 30 variations of the core head-to-head ga... | 11 | 3 | [
{
"comment_id": "6499454",
"author": "loonquawl",
"timestamp": "2022-08-02T06:35:31",
"content": "Are the shots curving sometimes? Very first shot of blue, and many afterwards seem to change direction – bug or feature?",
"parent_id": null,
"depth": 1,
"replies": [
{
"commen... | 1,760,372,612.074809 | ||
https://hackaday.com/2022/08/03/maximum-power-point-tracking-optimizing-solar-panels/ | Maximum Power Point Tracking: Optimizing Solar Panels | Maya Posch | [
"Featured",
"green hacks",
"Interest",
"Original Art",
"Slider"
] | [
"efficiency",
"mppt",
"off grid",
"pv solar",
"solar cell"
] | When looking at integrating a photovoltaic solar panel into a project, the naive assumption would be that you simply point the panel into the general direction of where the Sun is, and out comes gobs of clean DC power, ready to be used for charging a battery. To a certain extent this assumption is correct, but feeding ... | 59 | 17 | [
{
"comment_id": "6499929",
"author": "preamp.org",
"timestamp": "2022-08-03T14:25:55",
"content": "Here’s one built around an ATTiny44:http://www.zabex.de/site/mpptracker.html",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6499932",
"author": "abjq",
"... | 1,760,372,612.177424 | ||
https://hackaday.com/2022/08/03/restore-your-formerly-useless-ouya-console/ | Restore Your Formerly Useless Ouya Console | Bryan Cockfield | [
"Games"
] | [
"android",
"console",
"game",
"Ouya",
"phone home",
"server",
"sign in"
] | Plenty of electronics end up in the junk drawer or even landfill after their useful life ends, but in the modern world of planned obsolescence a lot more devices are thrown out simply because of lack of support. Sometimes it’s even worse than that as some products are designed to “phone home” and will lack critical fun... | 18 | 8 | [
{
"comment_id": "6499866",
"author": "monsonite",
"timestamp": "2022-08-03T11:26:02",
"content": "Check out the original Kickstarter Campaign which raised $8.5 million.https://www.kickstarter.com/projects/ouya/ouya-a-new-kind-of-video-game-console",
"parent_id": null,
"depth": 1,
"replie... | 1,760,372,611.953272 | ||
https://hackaday.com/2022/08/03/a-classic-tv-trope-for-an-escape-room/ | A Classic TV Trope For An Escape Room | Sven Gregori | [
"Arduino Hacks",
"home hacks"
] | [
"book shelf",
"bookcase",
"escape room",
"hidden door",
"magnetic lock",
"secret door"
] | No spooky mansion is complete without a secret passage accessed through a book shelf — or so Hollywood has taught us. What works as a cliché in movies works equally well in an escape room, and whenever there’s escape rooms paired with technology, [Alastair Aitchison] isn’t far. His latest creation: you guessed it,
is a... | 15 | 6 | [
{
"comment_id": "6499862",
"author": "Collie147",
"timestamp": "2022-08-03T10:35:25",
"content": "You could do the same with multiple switches and an order for the books to be moved in to open the door",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6499997",... | 1,760,372,612.282564 | ||
https://hackaday.com/2022/08/02/ultimate-bokeh-with-a-projector-lens/ | Ultimate Bokeh With A Projector Lens | Danie Conradie | [
"digital cameras hacks"
] | [
"Bokeh",
"episcope",
"lens",
"photography",
"projector"
] | Bokeh is a photography term that’s a bit difficult to define but is basically soft, aesthetically pleasing background blur, often used to make a subject stand out. Also called “background separation” or “subject isolation”, achieving it optically requires a fast lens with an aperture below 2.8 or preferably lower. Thes... | 22 | 10 | [
{
"comment_id": "6499812",
"author": "steelman",
"timestamp": "2022-08-03T05:51:53",
"content": "achieving it optically requires a fast lens with an aperture below 2.8 or preferably lowerIt also depends on the focal length. An aperture of 5.6 may be quite enough for a 300 mm (full-frame) lens.",
... | 1,760,372,612.235201 | ||
https://hackaday.com/2022/08/02/ham-radio-hacking-thinking-inside-the-box/ | Ham Radio Hacking: Thinking Inside The Box | Al Williams | [
"Wireless Hacks"
] | [
"acoustic filter",
"filter",
"ham radio"
] | There are two ways to deal with improving ham radio receivers, or — for that matter — any sort of receiver. You can filter and modify the radio frequency including the radio’s intermediate frequency, or you can alter the audio frequency output. Historically, RF and IF techniques have been the most valued because reject... | 19 | 11 | [
{
"comment_id": "6499779",
"author": "Ken",
"timestamp": "2022-08-03T02:07:18",
"content": "When the IC-7300 was first being released, there were vendors selling ‘scoops’ that you would place over the top of the radio to funnel the sound forward, rather than straight up.They were popular for a while... | 1,760,372,612.686669 | ||
https://hackaday.com/2022/08/02/revive-your-old-e-ink-tablet-for-timetable-helper-duty/ | Revive Your Old E-Ink Tablet For Timetable Helper Duty | Arya Voronova | [
"Android Hacks",
"Repair Hacks",
"Tablet Hacks"
] | [
"android tablet",
"e-reader",
"ebookreader",
"Nook",
"soft touch"
] | In our drawers, there’s gonna be quite a few old devices that we’ve forgotten about, and perhaps we ought to make them work for us instead. [Jonatron] found a Nook Simple Touch in his drawer – with its E-ink screen, wireless connectivity and a workable Android version, this e-reader from 2011 has the guts for always-on... | 17 | 8 | [
{
"comment_id": "6499762",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-08-03T00:03:45",
"content": "i found a “long lost” Nook in my daughter’s bedroom a couple of months back. It responded after having power attached.",
"parent_id": null,
"depth": 1,
"replies": [... | 1,760,372,612.513342 | ||
https://hackaday.com/2022/08/02/rc-lawnmower-is-built-to-last/ | RC Lawnmower Is Built To Last | Danie Conradie | [
"Tool Hacks"
] | [
"lawnmower",
"radio control",
"workshop from scratch"
] | Mowing the lawn is one of those tasks that someone will always be optimizing or automating. To allow him to mow the lawn while seated comfortably in the shade, [Workshop from Scratch] built an
RC Lawnmower
in his signature solid steel frame style.
The chassis consists of a heavy welded steel frame from square tubing, w... | 17 | 10 | [
{
"comment_id": "6499729",
"author": "mayhem",
"timestamp": "2022-08-02T21:35:24",
"content": "That thing is cool and far cheaper than this.https://echorobotics.com/The big one shown on the field is 21,000 $USD.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6... | 1,760,372,612.569221 | ||
https://hackaday.com/2022/07/31/cool-face-mask-turns-into-over-engineered-headache/ | Cool Face Mask Turns Into Over-Engineered Headache | Ryan Flowers | [
"Medical Hacks",
"Wearable Hacks"
] | [
"cooling",
"face mask",
"overcomplicated",
"Photogrammetry"
] | Seeing his wife try to use a cool face mask to get through the pain of a migraine headache, [Sparks and Code] started thinking of ways to improve the situation. The desire to save her from these debilitating bouts of pain
drove him to make an actively cooled mask
, all the while creating his
own
headache of an over-eng... | 13 | 7 | [
{
"comment_id": "6498917",
"author": "Lyndsay Williams",
"timestamp": "2022-07-31T14:18:12",
"content": "Why did you not consider Peltier and then more compact and water would not be needed?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498920",
"a... | 1,760,372,612.620113 | ||
https://hackaday.com/2022/07/31/building-a-tube-based-stereo-amp-in-classic-style/ | Building A Tube-Based Stereo Amp, In Classic Style | Donald Papp | [
"classic hacks"
] | [
"audio",
"hi-fi",
"labor of love",
"tube amp",
"vintage"
] | It’s not every day we see the results of someone putting their own spin on a vintage tube amp, but that’s exactly what [lens42] did in creating
the McIntosh 217, created as a “mini” version of the McIntosh MC275
, a classic piece of audio equipment. Both are pictured next to each other, above.
When it comes to vintage ... | 34 | 15 | [
{
"comment_id": "6498901",
"author": "mime",
"timestamp": "2022-07-31T12:38:41",
"content": "great job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6498907",
"author": "NiHaoMike",
"timestamp": "2022-07-31T13:41:46",
"content": "Shouldn’t the fi... | 1,760,372,612.847378 | ||
https://hackaday.com/2022/07/31/turning-a-pair-of-syringes-into-a-tiny-water-pump/ | Turning A Pair Of Syringes Into A Tiny Water Pump | Danie Conradie | [
"Parts"
] | [
"centrifugal pump",
"syringe",
"water pump"
] | There is something inherently fascinating about tiny mechanical devices, especially when you’re used to seeing much larger versions. This is the case with [Penguin DIY]’s
tiny centrifugal water pump
built from 5 ml syringes.
The pump is powered by a small 8 mm diameter brushed DC motor, likely the same type that is use... | 6 | 6 | [
{
"comment_id": "6498870",
"author": "Hitomi",
"timestamp": "2022-07-31T08:45:08",
"content": "Near perfect, thus easy to improve: Move the pump outside to the bottom of the tank. Solves the problem to keep the pump wet and able to create suction. Move the engine outside the syringe and use a shaft.... | 1,760,372,612.770619 | ||
https://hackaday.com/2022/07/30/upgraded-film-scanner-handles-bigger-formats-at-no-cost/ | Upgraded Film Scanner Handles Bigger Formats At No Cost | Donald Papp | [
"3d Printer hacks",
"Peripherals Hacks"
] | [
"3d printed",
"driver modification",
"film scanner",
"negatives",
"photography",
"plustek"
] | Film scanners are a useful tool for digitizing slides and negatives, and the Plustek 8100 that [Christian Chapman] had was capable, but limited to small format film only. Rather than pay for a much more expensive medium format scanner that could handle 120 film, he
modified his 8100 to accomplish the same thing
with a ... | 2 | 1 | [
{
"comment_id": "6498877",
"author": "foorjee",
"timestamp": "2022-07-31T09:25:27",
"content": "No cost is clearly not true with how much time must’ve been spent on this, but this is nevertheless a really cool transformation that really makes full use of what Christian already had.",
"parent_id"... | 1,760,372,612.731815 | ||
https://hackaday.com/2022/07/30/whats-the-time-its-casinoclock/ | What’s The Time? It’s Casino’clock! | Sven Gregori | [
"clock hacks"
] | [
"ESP32",
"playing cards",
"split flap",
"split-flap display",
"stepper motor"
] | As the saying goes, nothing can be said to be certain, except death, taxes, and the never-ending inventiveness of clock hacks. No matter how tried and proven a concept is, someone will always find a new twist for it. Case in point: notorious clock builder [Shinsaku Hiura] took the good old split-flap display approach,
... | 6 | 6 | [
{
"comment_id": "6498826",
"author": "William Jackson",
"timestamp": "2022-07-31T02:42:31",
"content": "Surveyors wheel is Trammell. Comes as wheeled with turn counter and stiff walking sticks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6498852",
"autho... | 1,760,372,612.894567 | ||
https://hackaday.com/2022/07/30/usb-drive-keeps-your-secrets-as-long-as-your-fingers-are-wet/ | USB Drive Keeps Your Secrets… As Long As Your Fingers Are Wet? | Donald Papp | [
"Security Hacks",
"Tech Hacks"
] | [
"access control",
"Ovrdrive",
"security",
"usb drive",
"usb stick"
] | [Walker] has a very interesting new project:
a completely different take on a self-destructing USB drive
. Instead of relying on encryption or other “visible” security features, this device looks and works like an utterly normal USB drive. The only difference is this: if an unauthorized person plugs it in, there’s no d... | 27 | 11 | [
{
"comment_id": "6498786",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-07-30T23:35:52",
"content": "Ewwwwww!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498789",
"author": "rpavlik",
"timestamp": "2022-07-30T23:53:... | 1,760,372,613.007875 | ||
https://hackaday.com/2022/07/30/re-reclaimed-from-nature-resurrecting-a-dt80-terminal/ | Re-reclaimed From Nature: Resurrecting A DT80 Terminal | Sven Gregori | [
"Repair Hacks",
"Retrocomputing"
] | [
"8085",
"DEC VT100",
"DT80",
"restoration",
"vt100"
] | When Datamedia announced their new DT80 terminal as a VT100 killer back in 1979, they were so confident of its reliability, they threw in a full one-year warranty. Now, decades later, that confidence is once more put to the touch after [RingingResonance] fished one such terminal out of a creek by an old illegal dumping... | 8 | 7 | [
{
"comment_id": "6498828",
"author": "MinorHavoc",
"timestamp": "2022-07-31T02:44:21",
"content": "Wow, that’s impressive work. The image on the npw-running CRT looks really nice and crisp and not at all like it had been stuck in mud for decades.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,372,612.940687 | ||
https://hackaday.com/2022/07/29/toddler-ev-gets-big-boy-battery-upgrade/ | Toddler EV Gets Big Boy Battery Upgrade | Ryan Flowers | [
"Battery Hacks",
"hardware"
] | [
"3d printing",
"dc-dc",
"electric vehicle",
"lead-acid",
"Li-ion",
"toy"
] | No matter the type of vehicle we drive, it has a battery. Those batteries wear out over time. Even high end EV’s have batteries with a finite life. But when your EV uses Lead Acid batteries, that life is measured on a much shorter scale. This is especially true when the EV is driven by a driver that takes up scarcely m... | 13 | 8 | [
{
"comment_id": "6498401",
"author": "Bruce Perens K6BP",
"timestamp": "2022-07-29T20:11:58",
"content": "Fun! But there are lots of 18AH batteries on Amazon with internal BMS. They should be close to a drop-in replacement.",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,372,613.07607 | ||
https://hackaday.com/2022/07/29/hackaday-prize-2022-modern-plug-in-gives-trs-80-its-voice-back/ | Hackaday Prize 2022: Modern Plug-in Gives TRS-80 Its Voice Back | Robin Kearey | [
"Retrocomputing",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"speech synthesizer",
"trs-80",
"voice synthesis"
] | Like artificial intelligence, speech synthesis was one of those applications that promised to revolutionize computing in the 1980s, only to fizzle out after people realized that a robotic voice reading out predefined sentences was not actually that useful. Nevertheless, computer manufacturers didn’t want to miss out on... | 9 | 4 | [
{
"comment_id": "6498380",
"author": "Michael Black",
"timestamp": "2022-07-29T19:06:24",
"content": "I never had a TRS-80, other than a Model 100. And I never had a voice synthesizer.They were one more thing companies could sell to people. At a time when there were limits to practical use of comp... | 1,760,372,613.211232 | ||
https://hackaday.com/2022/07/29/why-fedora-decided-to-give-cc0-licensed-code-the-boot/ | Why Fedora Decided To Give CC0 Licensed Code The Boot | Tom Nardi | [
"Current Events",
"Featured",
"Slider",
"Software Development"
] | [
"creative commons",
"fedora",
"open source",
"public domain",
"software license"
] | The term “open source” can be tricky. For many people, it’s taken to mean that a particular piece of software is free and that they can do whatever they wish with it. But the reality is far more complex, and the actual rights you’re afforded as the user depend entirely on which license the developers chose to release t... | 57 | 19 | [
{
"comment_id": "6498348",
"author": "BT",
"timestamp": "2022-07-29T17:41:23",
"content": "I wonder what the list of affected Fedora software is.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6498352",
"author": "LordNothing",
"timestamp": "2022-07-29... | 1,760,372,613.407525 | ||
https://hackaday.com/2022/07/29/hackaday-podcast-179-danger-chess-corona-motors-an-omni-walker-and-a-fast-talking-telescope/ | Hackaday Podcast 179: Danger Chess, Corona Motors, An Omni-Walker, And A Fast Talking Telescope | Dan Maloney | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Join Hackaday Editor-in-Chief Elliot Williams and Staff Writer Dan Maloney for their take on the hottest hacks in a hot, hot week. We found a bunch of unusual mechanisms this week, like an omnidirectional robot that’s not quite wheeled but not quite a walker either. Or, if you’d rather fly, there’s a UAV that’s basical... | 3 | 1 | [
{
"comment_id": "6499008",
"author": "Colin L",
"timestamp": "2022-08-01T01:39:53",
"content": "Frankly, I’m disappointed that nobody has watched the robot chess video closely. So much reporting about this is wrong. Please watch the video again and notice that the robot does not grab the child’s fin... | 1,760,372,613.272906 | ||
https://hackaday.com/2022/07/29/go-big-or-go-home-0-6-mm-nozzles-are-the-future/ | Go Big Or Go Home: 0.6 Mm Nozzles Are The Future | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"Nozzle",
"PrusaSlicer",
"slicer"
] | Most desktop fused deposition modeling (FDM) 3D printers these days use a 0.4 mm nozzle. While many people have tried smaller nozzles to get finer detail and much larger nozzles to get faster printing speed, most people stick with the stock value as a good trade-off between the two. That’s the conventional wisdom, anyw... | 51 | 19 | [
{
"comment_id": "6498294",
"author": "ThantiK",
"timestamp": "2022-07-29T15:40:12",
"content": "I know Tom said he can’t tell the differences between these Benchies, but I can tell you he definitely can. We’ve worked for so long diagnosing printers via bad pictures on G+ back when it was a thing th... | 1,760,372,613.516535 | ||
https://hackaday.com/2022/07/29/this-week-in-security-symbiote-smart-locks-and-cosmicstrand/ | This Week In Security: Symbiote, Smart Locks, And CosmicStrand | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"iot security",
"Symbiote",
"This Week in Security"
] | Symbiote is a particularly nasty Linux rootkit, and we have the interesting case of two separate analysis releasing this week. Up first is
[CyberMasterV] taking apart a very early sample of the malware.
The primary purpose of Symbiote seems to be capturing SSH logins, and this version does so by hooking the Pluggable A... | 23 | 4 | [
{
"comment_id": "6498277",
"author": "Viki",
"timestamp": "2022-07-29T15:05:13",
"content": "Sooo russian Kaspersky is now part of the good guys?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498279",
"author": "The Commenter Formerly Known As Ren"... | 1,760,372,613.6761 | ||
https://hackaday.com/2022/07/29/perseus-9-the-dual-6502-portable-machine-that-should-have-been/ | PERSEUS-9, The Dual-6502 Portable Machine That Should Have Been | Dan Maloney | [
"Retrocomputing"
] | [
"6502",
"led",
"mobile",
"retrocomputing",
"tablet",
"wire wrap"
] | A question: does anyone who was around in the early days of the 8-bit computer revolution remember
a dual-CPU 6502 portable machine
like this one? Or just a dual-CPU machine? Or even just a reasonably portable computer? We don’t, but that begs a further question: if [Mitsuru Yamada] can build such a machine today with ... | 53 | 27 | [
{
"comment_id": "6498207",
"author": "MD",
"timestamp": "2022-07-29T11:38:51",
"content": "The SuperPET had a 6502 & 6809…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498633",
"author": "Steven",
"timestamp": "2022-07-30T13:53:00",
... | 1,760,372,613.769481 | ||
https://hackaday.com/2022/07/30/hackaday-prize-2022-soviet-geiger-counter-gets-wifi/ | Hackaday Prize 2022: Soviet Geiger Counter Gets WiFi | Bryan Cockfield | [
"Microcontrollers",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"clock",
"ESP8266",
"geiger",
"radiation",
"rtc",
"wifi",
"wireless"
] | [Marek] has an impressive collection of old Soviet-style Geiger counters. These are handy tools to have in some specific situations, but for most of us they would be curiosities. Even so, they need some help from the modern world to work well, and [Marek] has come up with some pretty creative ways of bringing them into... | 4 | 2 | [
{
"comment_id": "6498710",
"author": "DerAxeman",
"timestamp": "2022-07-30T18:18:36",
"content": "To ensure accurate readings Geiger counters need to be checked with known sources periodically. This becomes even more important when you are trying to measure low level things like background radiation... | 1,760,372,613.811837 | ||
https://hackaday.com/2022/07/30/demonstrate-danger-safely/ | Demonstrate Danger, Safely | Elliot Williams | [
"Hackaday Columns",
"Laser Hacks",
"Rants",
"Slider"
] | [] | Dan Maloney and I were talking about the
chess robot arm that broke a child’s finger
during the podcast, and it turns out that we both have extreme
respect
for robot arms in particular. Dan had a story of a broken encoder wheel that lead to out-of-control behavior that almost hit him, and I won’t even get within striki... | 67 | 16 | [
{
"comment_id": "6498635",
"author": "Rob",
"timestamp": "2022-07-30T14:10:09",
"content": "Glad to see safety being discussed in a sensible and practical way, rather than all the paperwork based, but useless in practice at actually preventing harm, bureaucratic bullsh*t which has invaded government... | 1,760,372,613.926894 | ||
https://hackaday.com/2022/07/30/fix-old-caps-but-keep-that-can-capacitor-look/ | Fix Old Caps, But Keep That “Can Capacitor” Look | Donald Papp | [
"Parts",
"Repair Hacks"
] | [
"antique",
"can capacitors",
"electrolytic",
"repair",
"vintage"
] | Vintage electronics and capacitor replacements tend to go hand-in-hand. Why? Because electrolytic capacitors just don’t
last
, not the way most other components do, anyway.
The metal terminal ring and the central plate are kept for re-use, and the metal case re-crimped after the internals of the capacitor are replaced ... | 21 | 6 | [
{
"comment_id": "6498601",
"author": "Pieter",
"timestamp": "2022-07-30T11:43:09",
"content": "Please be very careful with old large capacitors. They likely contain PCB’s. I am an “old timer” electronics engineer and have seen workmates pass on due to “unexplained” cancers. Seehttps://en.wikipedia.o... | 1,760,372,616.009691 | ||
https://hackaday.com/2022/07/30/when-carl-says-jump-pcbs-say-how-high/ | When [Carl] Says Jump, PCBs Say “How High?” | Al Williams | [
"Robots Hacks"
] | [
"flexible PCB",
"jumping",
"springs"
] | We’ve noticed that [Carl Bugeja] likes flexible PCBs. His latest exploit is to make PCB-based springs that combine with some magnets to create
little devices that jump
. We aren’t sure what practical use these might have, but they are undeniably novel and you can see them — um — jumping around, in the video, below.
[Ca... | 4 | 2 | [
{
"comment_id": "6498560",
"author": "jpa",
"timestamp": "2022-07-30T08:16:02",
"content": "With two PCB coil electromagnets, some weight budget could be saved to have a tiny battery on board also. Though might be hard to get the current needed.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,372,615.484907 | ||
https://hackaday.com/2022/07/29/testing-antennas-with-wspr/ | Testing Antennas With WSPR | Al Williams | [
"Radio Hacks"
] | [
"ham radio",
"wspr"
] | There are many ways to test HF antennas ranging from simulation to various antenna analyzers and bridges. However, nothing can replace simply using the antenna to see how it works. Just as — supposedly — the bumblebee can’t fly, but it does so anyway, it is possible to load up some bed springs and make contacts. But it... | 20 | 5 | [
{
"comment_id": "6498564",
"author": "thom",
"timestamp": "2022-07-30T08:35:14",
"content": "FT8 and FT4 is what took the fun out of ham radio.Amazing modes but almost totally automated. Not inthe spirit of AR IMO.(And i love the other digi modes, PSK/Olivia,etc,etc)but FT8/4 has ruined digi modes. ... | 1,760,372,615.945183 | ||
https://hackaday.com/2022/07/29/calculus-made-easy-in-the-car/ | Calculus Made Easy In The Car | Al Williams | [
"Misc Hacks"
] | [
"calculus",
"math"
] | If you had the traditional engineering education, you’ve made your peace with calculus. If you haven’t, you may have learned it on your own, but for many people, calculus has a reputation for being super difficult. While some of the details can be very tricky, the core concepts are actually simple and [Mathologer] has
... | 24 | 8 | [
{
"comment_id": "6498512",
"author": "Mr Name Required",
"timestamp": "2022-07-30T02:27:32",
"content": "Any explanation that just has graphs and formulae and a presenter who recollects how easy it was for them at age 14 to grok calculus is IMO NOT the “easy” way for beginners to understand it.I thi... | 1,760,372,615.770633 | ||
https://hackaday.com/2022/07/29/cv-based-barking-dog-keeps-home-secure-doesnt-need-walking/ | CV Based Barking Dog Keeps Home Secure, Doesn’t Need Walking | Ryan Flowers | [
"Raspberry Pi",
"Security Hacks"
] | [
"burglar",
"burglar alarm",
"canine",
"computer vision",
"CV",
"dog",
"raspberry pi"
] | Meet
[Tanner]
. [Tanner] is a hacker who also appreciates the security of their home while they’re out of town. After doing some research about home security, they found that it doesn’t take much to keep a house from being broken into. It’s true that truly determined burglars might be more difficult to avoid. But, for ... | 26 | 11 | [
{
"comment_id": "6498462",
"author": "TG",
"timestamp": "2022-07-29T23:07:14",
"content": "This but it plays the dueling fiddles song with the noise of shotguns being racked",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498484",
"author": "The Comm... | 1,760,372,615.595968 | ||
https://hackaday.com/2022/07/28/smart-modular-keyboard-sports-an-e-ink-display-and-a-haptic-feedback-knob/ | Smart Modular Keyboard Sports An E-ink Display And A Haptic Feedback Knob | Robin Kearey | [
"Peripherals Hacks"
] | [
"e-ink display",
"haptic feedback",
"mechanical keyboard",
"oled display"
] | While most people may think that a keyboard is just a board with keys, those who read Hackaday will no doubt know that there’s an infinite variety of beautiful designs to suit any use case. [Peng Zhihui] is the latest to impress us with
an excellent custom keyboard that packs several unusual features
(video in Chinese,... | 19 | 9 | [
{
"comment_id": "6497900",
"author": "Adam",
"timestamp": "2022-07-28T16:17:00",
"content": "Can’t a matrix with diodes have an arbitrary number of keys pressed at once, without ghosting?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497914",
"auth... | 1,760,372,615.832052 | ||
https://hackaday.com/2022/07/28/your-own-engineering-workstation-with-mame/ | Your Own Engineering Workstation, With Mame | Al Williams | [
"Hackaday Columns",
"Retrocomputing"
] | [
"HP",
"HP9845C",
"retrocomputing"
] | There are some things that leave indelible impressions in your memory. One of those things, for me, was a technical presentation in 1980 I attended — by calling in a lot of favors — a presentation by HP at what is now the Stennis Space Center. I was a student and it took a few phone calls to wrangle an invite but I wou... | 19 | 10 | [
{
"comment_id": "6497903",
"author": "Bob",
"timestamp": "2022-07-28T16:21:56",
"content": "Wow, HP is saying the 9845 wasn’t “terribly reliable”? HP always justified its High Prices by boasting of their rock-solid hardware.",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,372,615.709755 | ||
https://hackaday.com/2022/07/28/google-quantum-virtually/ | Google Quantum, Virtually | Al Williams | [
"News",
"Software Development"
] | [
"google",
"quantum computing"
] | Want to try a big quantum computer but don’t have the cash? Google wants to up your simulation game with their “
Quantum Virtual Machine
” that you can use for free.
On the face of it, it sounds like marketing-speak for just another quantum simulator. But if you read the post, it sounds like it attempts to model effect... | 18 | 7 | [
{
"comment_id": "6497806",
"author": "Viki21",
"timestamp": "2022-07-28T11:39:56",
"content": "Dear computer, how do I maximise my ad revenue?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497847",
"author": "Gravis",
"timestamp": "2022-07-... | 1,760,372,615.650018 | ||
https://hackaday.com/2022/07/28/diy-retrograde-clock-is-3d-printed/ | DIY Retrograde Clock Is 3D Printed | Lewin Day | [
"clock hacks"
] | [
"3D printed parts",
"acrylic",
"clock"
] | Retrograde clocks are unique, in that they eschew the normal fully-circular movement for the hands. Instead, the hands merely sweep out a segment of a circular arc, before jumping back to their start position to begin again. They’re pretty rare to find, but [Jamie Matthews] decided he had to have one. Thusly,
he electe... | 3 | 1 | [
{
"comment_id": "6497844",
"author": "Gravis",
"timestamp": "2022-07-28T13:04:47",
"content": "Well, this is a new kind of clock I didn’t know existed. More importantly, I still don’t know why it exists in the first place.",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,372,615.52496 | ||
https://hackaday.com/2022/07/27/tiny-arcade-uses-tiny-crt/ | Tiny Arcade Uses Tiny CRT | Bryan Cockfield | [
"Games"
] | [
"arcade",
"cabinet",
"crt",
"curve",
"custom",
"restoration",
"video conference"
] | Restoring vintage electronics is a difficult hobby to tackle. Even the most practical builds often have to use some form of modern technology to work properly, or many different versions of the machine need to be disassembled to get a single working version. Either way, in the end someone will be deeply hurt by the des... | 16 | 9 | [
{
"comment_id": "6497678",
"author": "Per Jensen",
"timestamp": "2022-07-28T05:09:18",
"content": "*perpendicularly",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497709",
"author": "Joshua",
"timestamp": "2022-07-28T06:44:50",
"cont... | 1,760,372,615.887108 | ||
https://hackaday.com/2022/07/27/probing-can-bus-for-ev-battery-info/ | Probing CAN Bus For EV Battery Info | Bryan Cockfield | [
"Transportation Hacks"
] | [
"battery",
"c-zero",
"can-bus",
"car",
"citroen",
"display",
"i-miev",
"information",
"mitsubishi",
"OBD"
] | The widespread adoption of the CAN bus (and OBD-II) in automobiles was largely a way of standardizing the maintenance of increasingly complicated engines and their needs to meet modern emissions standards. While that might sound a little dry on the surface, the existence and standardization of this communications bus i... | 8 | 6 | [
{
"comment_id": "6497641",
"author": "RobHeffo",
"timestamp": "2022-07-28T03:09:24",
"content": "The enclosure is delightfully retro. Especially with the orange graphics on the screen.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6497747",
"author": "shi... | 1,760,372,616.150673 | ||
https://hackaday.com/2022/07/27/simple-universal-modem-helps-save-and-load-data-from-tape/ | Simple Universal Modem Helps Save And Load Data From Tape | Lewin Day | [
"Misc Hacks"
] | [
"audio",
"modem",
"tape",
"tape deck",
"tape storage"
] | Back in the early days of the home computer revolution, data was commonly saved on tape. Even better, those tapes would make an almighty racket if you played them on a stereo, because the data was stored in an audio format. The Simple Universal Modem from [Anders Nielsen] is built to work in a similar way,
turning dat... | 22 | 8 | [
{
"comment_id": "6497596",
"author": "asheets",
"timestamp": "2022-07-28T00:53:01",
"content": "How about on 8-track? :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497597",
"author": "LordNothing",
"timestamp": "2022-07-28T01:02:10",
... | 1,760,372,616.376735 | ||
https://hackaday.com/2022/07/29/love-is-a-burning-flame-and-so-is-this-underwater-burning-ring-of-fire/ | Love Is A Burning Flame, And So Is This Underwater Burning Ring Of Fire | Ryan Flowers | [
"Science"
] | [
"don't try this at home",
"fire",
"solenoid",
"underwater",
"voice coil"
] | When Johnny Cash wrote “Ring of Fire”, he was talking about love. But when an unnamed follower of [TheBackyardScientist] took it literally and suggested making actual rings of fire — underwater — they rose to the challenge as you can see in the
video below the break
.
Of course there are several ingredients to underwa... | 22 | 8 | [
{
"comment_id": "6498160",
"author": "Dan",
"timestamp": "2022-07-29T08:44:10",
"content": "Think it’s oxy/propane mix. He mentions propane quite a few times.It’d be awesome to find something that burns slower so you could see it without the high speed camera.My understanding is underwater explosion... | 1,760,372,616.257457 | ||
https://hackaday.com/2022/07/28/new-os-for-commodore-64-adds-modern-features/ | New OS For Commodore 64 Adds Modern Features | Bryan Cockfield | [
"Retrocomputing"
] | [
"64",
"antique",
"c64",
"c64os",
"commodore",
"operating system",
"retro",
"windows"
] | The Commodore 64 was a revolutionary computer for its day and age. After four decades, though, it gets harder and harder to use these computers for anything more than educational or hobby electronics projects. [Gregory Nacu] is fiercly determined to challenge this idea, though, and has gone to great extremes to make th... | 45 | 17 | [
{
"comment_id": "6498115",
"author": "vavles",
"timestamp": "2022-07-29T05:11:58",
"content": "totally impressive. Can´t he travel to 1982 and be hired by Commodore ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6498123",
"author": "Joshua",
"timesta... | 1,760,372,616.457717 | ||
https://hackaday.com/2022/07/28/inca-knots-inspire-quantum-computer/ | Inca Knots Inspire Quantum Computer | Al Williams | [
"Science"
] | [
"quantum computing",
"topological quantum computing"
] | We think of data storage as a modern problem, but even ancient civilizations kept records. While much of the world used stone tablets or other media that didn’t survive the centuries, the Incas used something called quipu which encoded numeric data in strings using knots. Now the ancient system of recording numbers has... | 19 | 7 | [
{
"comment_id": "6498106",
"author": "NS",
"timestamp": "2022-07-29T04:25:58",
"content": "This article looks as if it was created bt GPT-3. What a bunch of nonsense.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6498138",
"author": "Patrick Allen (... | 1,760,372,616.319902 | ||
https://hackaday.com/2022/07/28/foam-cutter-moves-like-a-hot-knife-through-butter/ | Foam Cutter Moves Like A Hot Knife Through Butter | Kristina Panos | [
"classic hacks"
] | [
"foam",
"foam cutter",
"hot wire foam cutter",
"nichrome wire"
] | Make enough attempts to cut foam using whatever you’ve got — utility knife, hacksaw, serrated plastic knife — and you’ll wish hard for something that cuts cleaner, faster, and better. While there are all sorts of ways to build a hot wire foam cutter,
this design from [jasonwinfieldnz] is both interesting and imitable
.... | 13 | 8 | [
{
"comment_id": "6498066",
"author": "Earle RIch",
"timestamp": "2022-07-28T23:38:14",
"content": "I use my bandsaw for cutting. Regular blade for wood or metal, very fast, accurate and clean.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6498069",
"autho... | 1,760,372,616.674414 | ||
https://hackaday.com/2022/07/28/a-customizable-macropad-to-make-anyones-tail-wag/ | A Customizable Macropad To Make Anyone’s Tail Wag | Kristina Panos | [
"Arduino Hacks",
"Peripherals Hacks"
] | [
"arduino",
"attiny85",
"macro",
"macro pad",
"macropad"
] | [Gili Yankovitch] has always wanted some kind of macro keypad for all those boss-slaying combos he keeps up the sleeve of his wizard robe while playing WoW. Seventeen years later, he finally threw down the gauntlet and built one. But really, this is an understatement, because
Paws is kind of the customizable macropad t... | 4 | 1 | [
{
"comment_id": "6498076",
"author": "Miles",
"timestamp": "2022-07-29T00:39:50",
"content": "It is crazy the best way to get ATTiny85 might be stripping them from DigisparkOtherwise the RP2040 is cheaper at $1 each, might even knock some latency off with those PIO :DI’m torn, if it is expandable th... | 1,760,372,616.715076 | ||
https://hackaday.com/2022/07/28/hackaday-prize-2022-a-functional-commodore-pet-tribute/ | Hackaday Prize 2022: A Functional Commodore PET Tribute | Lewin Day | [
"computer hacks",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"Amiga 500",
"commodore",
"Commodore PET",
"pc",
"retrocomputer"
] | The C64 may be the best-selling computer of all time, but Commodore made several machines before that, too. [Mjnurney] always loved the Commodore PET, and set about building some new machines
in the PET’s unique all-in-one form factor.
The case design started with measurements taken from an original Commodore PET, of w... | 14 | 10 | [
{
"comment_id": "6497965",
"author": "HaHa",
"timestamp": "2022-07-28T18:48:46",
"content": "Are the PET graphics characters in unicode?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497995",
"author": "Hirudinea",
"timestamp": "2022-07-28T... | 1,760,372,616.571016 | ||
https://hackaday.com/2022/07/28/where-pollution-hits-the-road-the-growing-environmental-hazard-of-rubber-tires/ | Where Pollution Hits The Road: The Growing Environmental Hazard Of Rubber Tires | Maya Posch | [
"Current Events",
"Featured",
"Original Art",
"Science",
"Slider"
] | [
"6PPD",
"6PPD-quinone",
"tire"
] | As ubiquitous as rubber tires are due to the many practical benefits they offer to cars, trucks, and other conveyances, they do come with a limited lifespan. Over time, the part of the tire that contacts the road surface wears away, until a tire replacement is necessitated. Perhaps unsurprisingly, the material that wea... | 110 | 23 | [
{
"comment_id": "6497927",
"author": "Miles",
"timestamp": "2022-07-28T17:17:54",
"content": "Even if you can’t buy a smaller lighter vehicle you can drive in a more relaxed manner when appropriate to minimize rubber loss and get your car an alignment.You will save money because your tires will last... | 1,760,372,616.958861 | ||
https://hackaday.com/2022/07/27/you-can-build-a-giant-7-segment-display-of-your-very-own/ | You Can Build A Giant 7-Segment Display Of Your Very Own | Lewin Day | [
"LED Hacks"
] | [
"7 segment",
"7-segment display",
"display",
"ESP8266"
] | Sometimes you need to display a number nice and large, making it easily readable at a good distance. [Lewis] has just the thing for that:
a big expandable 7-segment display.
The build is modular, allowing it to be extended from 2 to 10 digits and beyond. The digits themselves are made of 3D-printed parts assembled onto... | 7 | 3 | [
{
"comment_id": "6497517",
"author": "SteveS",
"timestamp": "2022-07-27T21:10:26",
"content": "I see a back-ground and I want to paint it bla-aack (with apologies to the Stones)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497518",
"author": "Mich... | 1,760,372,616.614923 | ||
https://hackaday.com/2022/07/27/hackaday-prize-2022-repairing-a-vintage-laptop-with-modern-components/ | Hackaday Prize 2022: Repairing A Vintage Laptop With Modern Components | Robin Kearey | [
"Repair Hacks",
"Retrocomputing",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"386",
"custom PCB",
"laptop repair",
"power supply",
"TFT display",
"Toshiba"
] | Laptop computers may be ubiquitous today, but there was a time when they were the exclusive preserve of rich businesspeople. Back in the early ’90s, the significant added cost of portability was something that few were willing to pay. As a result, not many laptops from those days survive; for those that do, keeping the... | 23 | 6 | [
{
"comment_id": "6497470",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-07-27T18:58:28",
"content": "I keep an old laptop from that Era, but the floppy drive is bad, so I’m not able to install Linux, or format a larger hard disk. IIRC, It has a rudimentary USB connector that ... | 1,760,372,616.805816 | ||
https://hackaday.com/2022/07/27/electrolytes-theyre-what-dehydrated-hackaday-writers-crave/ | Electrolytes, They’re What Dehydrated Hackaday Writers Crave! | Jenny List | [
"Hackaday Columns",
"Medical Hacks",
"Slider"
] | [
"dehydration",
"electrolytes",
"oral rehydration salts"
] | The oddly prophetic 2006 comedy film
Idiocracy
features an isotonic drink called Brawndo, whose marketing continuously refers to its electrolytes as a miraculous property. Brawndo is revealed in the film to be useless for agricultural irrigation, but yesterday perhaps a couple of Hackaday writers could have used a bott... | 106 | 28 | [
{
"comment_id": "6497445",
"author": "Menno",
"timestamp": "2022-07-27T17:11:19",
"content": "Hyponatremia is relatively uncommon, even in those conditions and the crisps would have supplied more than enough. The problem was more likely hypokalemia, as muscular problems were present and crisps suppl... | 1,760,372,617.102346 | ||
https://hackaday.com/2022/07/27/launch-and-track-your-model-rockets-via-smartphone/ | Launch And Track Your Model Rockets Via Smartphone | Lewin Day | [
"Microcontrollers",
"Toy Hacks"
] | [
"Adafruit Feather",
"ESP32",
"Feather",
"LoRa",
"model rocket"
] | Building and flying model rockets is great fun. Eventually, though, the thrill of the fire and smoke subsides, and you want to know more about what it’s doing in the air. With a thirst for knowledge, [archy587] started
building a project to monitor the vital stats of rockets in flight.
The project mounts an M0 Feather ... | 14 | 6 | [
{
"comment_id": "6497548",
"author": "Mr Name Required",
"timestamp": "2022-07-27T23:03:54",
"content": "Nice project. Things have really come a long way since the old Estes TransRoc but the penalty for lofting all that hardware (as the project states) is the need to use a D size motor as a minimum.... | 1,760,372,617.256255 | ||
https://hackaday.com/2022/07/27/the-surprisingly-manual-process-of-building-automotive-wire-harnesses/ | The Surprisingly Manual Process Of Building Automotive Wire Harnesses | Dan Maloney | [
"Engineering",
"Featured",
"Original Art",
"Slider"
] | [
"automotive",
"cable",
"cad",
"car",
"CATIA",
"eda",
"grommet",
"harnes",
"loom",
"truck",
"wire",
"wire harness",
"wrap"
] | Even from the very earliest days of the automobile age, cars and trucks have been hybrids of mechanical and electrical design. For every piston sliding up and down in a cylinder, there’s a spark plug that needs to be fired at just the right time to make the engine work, and stepping on the brake pedal had better cause ... | 115 | 31 | [
{
"comment_id": "6497377",
"author": "abjq",
"timestamp": "2022-07-27T14:09:14",
"content": "What is it with car wiring schematics? I’ve been reading them for years, but still the format seems crazy.And, different per manufacturer.A feature on the history of these (and any conventions employed) woul... | 1,760,372,617.419591 | ||
https://hackaday.com/2022/07/27/move-over-silicon-a-new-semiconductor-is-in-town/ | Move Over Silicon, A New Semiconductor Is In Town | Al Williams | [
"News",
"Science"
] | [
"mit",
"semiconductors",
"University of Houston"
] | Silicon has had a long run as the king of semiconductors, and why not? It’s plentiful and works well. However, working
well
and working
ideally
are two different things. In particular, electrons flow better than holes through the material. Silicon also is a poor heat conductor as we’ve all noticed when working with hig... | 28 | 9 | [
{
"comment_id": "6497340",
"author": "M",
"timestamp": "2022-07-27T11:07:50",
"content": "GaN",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497353",
"author": "Gravis",
"timestamp": "2022-07-27T12:26:55",
"content": "Great semicondu... | 1,760,372,617.483862 | ||
https://hackaday.com/2022/07/27/large-format-3d-printer-is-a-serious-engineering-challenge/ | Large Format 3D Printer Is A Serious Engineering Challenge | Danie Conradie | [
"3d Printer hacks"
] | [
"aluminum extrusions",
"extruder",
"large scale 3d printing",
"pellet fed"
] | When you want to build a large format 3D printer, you can’t just scale up the design of a desktop machine. In an excellent four-part build series (videos after the break), [Dr. D-Flo] takes us through all the engineering challenges he had to contend with when building a
3D printer with a 4x4x4 ft (1.2 m cube) print vol... | 14 | 6 | [
{
"comment_id": "6497364",
"author": "Gravis",
"timestamp": "2022-07-27T13:11:13",
"content": "The pellet extruder is really nice. I just wish they had designed one for smaller setups.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497502",
"author... | 1,760,372,617.54036 | ||
https://hackaday.com/2022/07/26/mini-falcon-9-uses-nasa-software/ | Mini Falcon 9 Uses NASA Software | Bryan Cockfield | [
"Space"
] | [
"control",
"Falcon 9",
"gimbal lock",
"model",
"pid",
"quaternian",
"rocket",
"software",
"Space Shuttle",
"Thrust vectoring"
] | [T-Zero Systems] has been working on his model Falcon 9 rocket for a while now. It’s an impressive model, complete with thrust vectoring, a microcontroller which follows a predetermined flight plan, a working launch pad, and even legs to attempt vertical landings. During his
first tests
of his model, though, there were... | 17 | 7 | [
{
"comment_id": "6497291",
"author": "Mr. Laneous",
"timestamp": "2022-07-27T05:03:25",
"content": "Neat",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6497309",
"author": "three_d_dave",
"timestamp": "2022-07-27T07:13:21",
"content": "WIth an “o” ... | 1,760,372,617.592083 | ||
https://hackaday.com/2022/07/26/balloons-are-the-user-interface-of-the-future/ | Balloons Are The User Interface Of The Future | Lewin Day | [
"Misc Hacks"
] | [
"balloon",
"haptic",
"haptic feedback",
"haptic interface",
"interface",
"ultrasound"
] | We’ve seen all kinds of interfaces come and go over the years, from keyboards and mice to lightpens and touchscreens. Now, a group of researchers at the University of Tokyo have built a device
that enables haptic interaction with a balloon.
It takes quite a rig to achieve this feat. A vaguely-spherical frame is used, w... | 12 | 7 | [
{
"comment_id": "6497270",
"author": "Paul LeBlanc",
"timestamp": "2022-07-27T02:36:14",
"content": "There’s your next generation drone controller",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6497281",
"author": "Thinkerer",
"timestamp": "2022-07-27T... | 1,760,372,617.636966 | ||
https://hackaday.com/2022/07/26/omnidirectional-walker-with-wheeled-feet/ | Omnidirectional Walker With Wheeled Feet | Danie Conradie | [
"Robots Hacks"
] | [
"james bruton",
"strandbeest",
"walking robot"
] | [James Bruton] is on a quest to explore all the weird and wonderful methods of robot locomotion, and in his latest project created an
omnidirectional walker
that can move in any direction instantaneously.
The walker actually makes use of three independent four-legged Strider mechanisms, connected in a triangle at 120de... | 4 | 3 | [
{
"comment_id": "6497260",
"author": "HifiKuno",
"timestamp": "2022-07-27T01:44:48",
"content": "I always enjoy James Bruton’s videos. This one looks hilarious when it walks. I can’t wait to see him make it bigger.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id":... | 1,760,372,617.676551 | ||
https://hackaday.com/2022/07/26/a-new-way-to-produce-pcbs-with-your-3d-printer/ | A New Way To Produce PCBs With Your 3D Printer | Tom Nardi | [
"3d Printer hacks",
"Parts"
] | [
"pcb fabrication",
"stencil",
"UV soldermask"
] | With the low-cost PCB fabrication services available to hackers and makers these days, we’ll admit that making your own boards at home doesn’t hold quite the appeal that it did in the past. But even if getting your boards professionally made is cheaper and easier than it ever has been before, at-home production still c... | 50 | 16 | [
{
"comment_id": "6497210",
"author": "tonyvr",
"timestamp": "2022-07-26T20:11:12",
"content": "This seems like it is much more involved and much lower resolution than a laser-printed stencil.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497239",
"... | 1,760,372,617.767535 | ||
https://hackaday.com/2022/07/26/hackaday-prize-2022-digital-dice-towers-built-in-beautiful-retro-cases/ | Hackaday Prize 2022: Digital Dice Towers Built In Beautiful Retro Cases | Lewin Day | [
"classic hacks",
"Microcontrollers",
"The Hackaday Prize"
] | [
"2022 Hackaday Prize",
"dd",
"dice",
"dice tower",
"Dungeons and Dragons"
] | Retro hardware often looks fantastic, but we may find we no longer need it for its original function. [John Anderson] found that to be the case with some old Heathkit gear,
and set about giving them a fun overhaul.
With the help of AVR microcontrollers, the devices have been repurposed into electronic dice towers for p... | 5 | 3 | [
{
"comment_id": "6497240",
"author": "TG",
"timestamp": "2022-07-26T23:03:12",
"content": "Is there a tabletop Fallout game?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497816",
"author": "Michael Tavares",
"timestamp": "2022-07-28T12:13:... | 1,760,372,617.810327 | ||
https://hackaday.com/2022/07/26/biomimetic-surfaces-copying-nature-to-deter-bacteria-and-keep-ship-hulls-smooth/ | Biomimetic Surfaces: Copying Nature To Deter Bacteria And Keep Ship Hulls Smooth | Maya Posch | [
"Featured",
"Interest",
"Original Art",
"Science",
"Slider"
] | [
"anti-fouling",
"biofouling"
] | You might not think that keeping a boat hull smooth in the water has anything in common with keeping a scalpel clean for surgery, but there it does: in both cases you’re trying to prevent nature — barnacles or biofilm — from growing on a surface. Science has looked to nature, and found that the micro-patterning formed ... | 25 | 8 | [
{
"comment_id": "6497176",
"author": "RW ver 0.0.3",
"timestamp": "2022-07-26T17:24:01",
"content": "Then there’s the “why fight inevitability” approach and find a barnacle you can breed to stay a maximum small size and plate the hull with, keeping everything else from building up on it. Then you ca... | 1,760,372,617.882688 | ||
https://hackaday.com/2022/07/26/doom-runs-on-the-emfcamp-tidal-badge/ | DOOMRuns On The EMFCamp Tidal Badge | Lewin Day | [
"Microcontrollers"
] | [
"badge",
"badgelife",
"doom",
"emfcamp"
] | If it’s got a chip and a screen, someone’s trying to run
DOOM
on it. The latest entry in this fad is from [Phil Ashby], who figured out how to get the game running on the EMFCamp Tidal Badge
as seamlessly as possible.
The badge is based on the ESP32-S3. It’s the latest version of the ESP32,
which can run the iconic sho... | 4 | 2 | [
{
"comment_id": "6497187",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-07-26T18:06:27",
"content": "Accomplishment!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6497330",
"author": "Phil Ashby",
"timestamp": "2022-07... | 1,760,372,617.922337 | ||
https://hackaday.com/2022/07/26/protecting-the-hughes-h4-hercules-with-beach-balls/ | Protecting The Hughes H4 Hercules With… Beach Balls? | Ryan Flowers | [
"classic hacks",
"Hackaday Columns",
"Slider",
"Transportation Hacks"
] | [
"aviation",
"aviation museum",
"beach balls",
"Hercules",
"spruce goose"
] | While visiting the
Evergreen Aviation & Space Museum
in McMinnville, OR, USA over the weekend, I came across a hack.
In addition to the excellent displays on site and an area where one can watch a video on repeat, the museum offers guided tours for a very reasonable price. And it was during this tour that my life as an... | 45 | 15 | [
{
"comment_id": "6497120",
"author": "mime",
"timestamp": "2022-07-26T14:08:24",
"content": "nice",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6499405",
"author": "Paul",
"timestamp": "2022-08-02T01:58:48",
"content": "I worked unde... | 1,760,372,618.728121 | ||
https://hackaday.com/2022/07/26/orbtrace-effort-open-tool-for-professional-debugging/ | ORBTrace Effort: Open Tool For Professional Debugging | Arya Voronova | [
"ARM",
"Software Development"
] | [
"arm cortex-m",
"cortex m",
"debugger",
"debugging",
"debugging tools",
"in-circuit debugger",
"parallel trace",
"SWO",
"swo trace"
] | There are some fairly powerful debugging facilities available on today’s microcontrollers — if your code crashes mysteriously, chances are, there’s a debugging interface that could let you track down the exact crash circumstances in no time. Sadly, debugging tools for these powerful interfaces tend to be prohibitively ... | 35 | 10 | [
{
"comment_id": "6497102",
"author": "Squonk42",
"timestamp": "2022-07-26T12:55:56",
"content": "Ouch, 120USD!Are you serious? For a <$20 25k Lattice FPGA, a <$3 64Mb NOR Flash, a <$3 64Mb HRAM, a <$2 USB I/F IC, a bunch of LDOs and buffers?And that is not including a $33.5 shipping fee for DHL to m... | 1,760,372,618.584624 | ||
https://hackaday.com/2022/07/26/atmospheric-high-voltage-motor-makes-useful-power/ | Atmospheric High-Voltage Motor Makes Useful Power | Bryan Cockfield | [
"High Voltage",
"Science"
] | [
"atmospheric",
"corona",
"drill",
"high voltage",
"motor",
"power",
"van de graaf"
] | While it almost seems like an insane fever dream from an otherwise brilliant inventor, Nikola Tesla’s plan to harvest energy straight out of the atmosphere and essentially give it away is more reality than fiction. It’s usually prohibitively difficult get that energy out of the atmosphere for several obvious reasons, a... | 23 | 11 | [
{
"comment_id": "6497072",
"author": "hardsoftlucid",
"timestamp": "2022-07-26T08:43:14",
"content": "love this electrostatic motor:https://www.youtube.com/watch?v=s3yO7jYaD98",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6497084",
"author": "Dan",
"t... | 1,760,372,618.229827 | ||
https://hackaday.com/2022/07/25/a-simple-charging-station-for-twelve-powerbanks/ | A Simple Charging Station For Twelve Powerbanks | Arya Voronova | [
"Battery Hacks",
"hardware",
"Lifehacks"
] | [
"charging station",
"powerbank",
"USB powerbank"
] | [jasonwinfieldnz] uses twelve small powerbanks day to day – powering LED strips around his trampoline, presumably, to avoid the mess of wires and make the assembly easily portable. However, if you have twelve powerbanks, you’ll find yourself hogging all the household’s microUSB cables every so often, as they eventually... | 13 | 4 | [
{
"comment_id": "6497064",
"author": "elmesito",
"timestamp": "2022-07-26T07:43:49",
"content": "No current limiting to each power bank. That sure is a good way to start a fire.Should at least have a fuse for each power bank.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,618.63572 | ||
https://hackaday.com/2022/07/25/openjewelry-no-pliers-required/ | OpenJewelry, No Pliers Required | Kristina Panos | [
"Misc Hacks",
"Wearable Hacks"
] | [
"jewelry",
"jewelry casting",
"led jewelry",
"open source",
"wiki"
] | They say that if you want something done right, you gotta do it yourself. Oftentimes, that goes double for getting something done at all. Whereas some people might simply lament the lack of a (stable) Thingiverse-type site for, say, jewelry designs, those people aren’t Hackaday’s own [Adam Zeloof]. With nowhere to shar... | 2 | 1 | [
{
"comment_id": "6497041",
"author": "Unsolicited advice goblin",
"timestamp": "2022-07-26T03:36:45",
"content": "“They say that if you want something done right, you gotta do it yourself.”This is very true, and it is equally true that if you ask someone else to do something, you have to be ready to... | 1,760,372,618.367667 | ||
https://hackaday.com/2022/07/25/up-close-and-personal-with-an-8x-floppy-controller/ | Up Close And Personal With An 8x Floppy Controller | Tom Nardi | [
"computer hacks",
"Peripherals Hacks",
"Retrocomputing"
] | [
"floppy",
"floppy controller",
"ISA cards"
] | In need of a floppy controller for a 286 he was working on, [Gadget Reboot] took to GitHub to see what was available in the open hardware space. There he found an
ISA board capable of controlling up to eight drives from [Sergey Kiselev] called the Monster Floppy Disk Controller (FDC)
— arguably overkill for the task, b... | 44 | 12 | [
{
"comment_id": "6497005",
"author": "Ken",
"timestamp": "2022-07-25T23:07:37",
"content": "It’s a 5 1/4″ floppy drive, not an 8″ – compare the slot to the optical (CD-ROM) drive above it in the chassis.8″ drives all but disappeared from PCs as IBM-PC clones overtook the market.",
"parent_id": n... | 1,760,372,618.322761 | ||
https://hackaday.com/2022/07/25/mcterminals-give-the-hamburglar-a-chance/ | McTerminals Give The Hamburglar A Chance | Jenny List | [
"Security Hacks"
] | [
"hardware security",
"McDonald's",
"security"
] | The golden arches of a McDonald’s restaurant are a ubiquitous feature of life in so many parts of the world, and while their food might not be to all tastes their comforting familiarity draws in many a weary traveler. There was a time when buying a burger meant a conversation with a spotty teen behind the till, but now... | 46 | 18 | [
{
"comment_id": "6496968",
"author": "Michael Black",
"timestamp": "2022-07-25T20:20:01",
"content": "There was a time when I’d see Radio Shack Model 100s at the local McDonalds. They were in the kitchen area, never knew what for. I seemto recall a panel over much of the keyboard, so maybe just th... | 1,760,372,618.882549 | ||
https://hackaday.com/2022/07/24/automated-hotend-swapping-for-less-wasteful-multicolor-printing/ | Automated Hotend Swapping For Less Wasteful Multicolor Printing | Danie Conradie | [
"3d Printer hacks"
] | [
"automatic tool changer",
"hotend",
"Multicolor 3D printing",
"multimaterial"
] | Multicolor printing on FDM machines can be tricky to get working flawlessly, and purging hotends when changing colors can end up wasting a lot of filament and material. To solve this problem for the popular Prusa i3 and Ender 3 printers, [BigBrain3D] developed the
Swapper3D
, an automated system that swaps the entire h... | 16 | 4 | [
{
"comment_id": "6496673",
"author": "codetoad",
"timestamp": "2022-07-25T02:50:15",
"content": "This could be a very interesting product! With 25 hot ends, I wonder if this approach could make use of multiple nozzle sizes for the same material, and if that would have any practical benefits after th... | 1,760,372,618.783877 | ||
https://hackaday.com/2022/07/24/hackaday-links-july-24-2022/ | Hackaday Links: July 24, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"con",
"da vinci",
"easter egg",
"hackaday links",
"james webb space telescope",
"Jezero",
"jwst",
"mars",
"Perseverance",
"robotic surgery",
"scale",
"Supercon"
] | OK, maybe that won’t buff right out. NASA has released
a more detailed analysis of the damage suffered by the James Webb Space Telescope
in a run-in with a micrometeoroid, and has deemed the damage “uncorrectable”. Not that any damage to JWST is correctable, at least in the sense that the Hubble Space Telescope was abl... | 6 | 4 | [
{
"comment_id": "6496558",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-07-24T23:39:31",
"content": "Inre: Easter eggsFollowing the link, under Rock Star Easter eggs,It counts down 9, but #4 is missing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"c... | 1,760,372,618.976029 | ||
https://hackaday.com/2022/07/24/stackable-3d-printed-gearbox-for-brushless-motor/ | Stackable 3D-Printed Gearbox For Brushless Motor | Danie Conradie | [
"Tech Hacks"
] | [
"3D printed gears",
"gearbox",
"planetary gears"
] | Affordable brushless motors are great for a variety of motion applications, but often require a gearbox to tame their speed. [Michael Rechtin] decided to try his hand at designing a
stackable planetary gearbox
for a brushless motor that allows him to add or remove stages to change the gear ratio.
The gearbox is designe... | 11 | 6 | [
{
"comment_id": "6496492",
"author": "paulvdh",
"timestamp": "2022-07-24T21:03:32",
"content": "Gear boxes like these really need several hundred hours of testing under load before any useful conclusion about their usefulness can be made. And a lever hitting a load cell is not a good way of testing ... | 1,760,372,618.932297 | ||
https://hackaday.com/2022/07/24/interesting-optics-make-this-laser-engraver-fit-in-a-pocket/ | Interesting Optics Make This Laser Engraver Fit In A Pocket | Dan Maloney | [
"Laser Hacks"
] | [
"cutter",
"engraver",
"galvo",
"laser",
"raster"
] | We’re going to start this post with a stern warning: building
a laser engraver that can fit in your pocket
is probably not a wise idea. Without any safety interlocks and made from lightweight components as it is, this thing could easily tip over and sear a retina before you’d even have time to react. You definitely sho... | 37 | 12 | [
{
"comment_id": "6496454",
"author": "scott_tx",
"timestamp": "2022-07-24T18:01:04",
"content": "using a relay to turn the laser power on and off…. yeahhhhh?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6496698",
"author": "Wear googles",
"... | 1,760,372,619.05728 | ||
https://hackaday.com/2022/07/24/turn-drone-into-a-large-propeller-to-increase-hover-efficiency/ | Turn Drone Into A Large Propeller To Increase Hover Efficiency | Danie Conradie | [
"drone hacks"
] | [
"dRehmFlight",
"drone",
"nicholas rehm",
"tricopter"
] | Multirotor drones are significantly more popular than conventional helicopter designs for many reasons, which do not include efficiency. Making use of the aerodynamic effects behind this, [Nicholas Rehm] was able to significantly increase the efficiency of his experimental tricopter by
turning it into one large spinnin... | 42 | 20 | [
{
"comment_id": "6496391",
"author": "Gravis",
"timestamp": "2022-07-24T14:43:43",
"content": "A compass seems like the best way to tell it’s directional orientation but in order to indicate (visually) which way it’s “pointing” there needs to be some LEDs added. Higher RPMs will result in a PoV eff... | 1,760,372,619.391754 | ||
https://hackaday.com/2022/07/24/a-70s-tv-with-20s-parts/ | A ’70s TV With ’20s Parts | Bryan Cockfield | [
"classic hacks"
] | [
"antique",
"controls",
"lcd",
"microcontroller",
"screen",
"sony",
"tv",
"vintage"
] | Keeping older technology working becomes exponentially difficult with age. Most of us have experienced capacitor plague, disintegrating wire insulation, planned obsolescence, or even the original company failing and not offering parts or service anymore. To keep an antique running often requires plenty of spare parts, ... | 45 | 16 | [
{
"comment_id": "6496353",
"author": "not",
"timestamp": "2022-07-24T11:21:25",
"content": "and why not just changing the flyback transformer ? Many models are readily available, quite cheap… certainly far less work that this kludge, and much more authentic.",
"parent_id": null,
"depth": 1,
... | 1,760,372,619.487323 | ||
https://hackaday.com/2022/07/24/condemned-precision-capacitors-find-new-home-refuse-to-become-refuse/ | Condemned Precision Capacitors Find New Home, Refuse To Become Refuse | Ryan Flowers | [
"classic hacks"
] | [
"air capacitor",
"capacitor",
"capacitors",
"dumpster diving",
"insulator",
"invar",
"teardown"
] | Ah, the age old tradition of Dumpster diving! Sometimes we happen to spot something that’s not quite trash, but not quite perfect, either. And when [dzseki], an EEVblog.com forum user, spotted some high-precision capacitors being 86’d at their employer’s e-waste pile, [dzseki] did what any good hacker would do: took th... | 12 | 2 | [
{
"comment_id": "6496327",
"author": "jpa",
"timestamp": "2022-07-24T08:15:54",
"content": "How does one use a precision capacitor that has to be attached with long cables?The cable capacitance is a lot higher than the capacitor itself. I guess you get a lot of stray capacitance to the shield and ha... | 1,760,372,619.25249 | ||
https://hackaday.com/2022/07/23/hack-your-brain-bionic-reading-panacea-or-placebo/ | Hack Your Brain: Bionic Reading — Panacea Or Placebo? | Al Williams | [
"Lifehacks",
"Misc Hacks"
] | [
"dyslexia",
"reading",
"reading aid"
] | In the Star Trek episode
Space Seed
, [Khan] famously said, “Improve a mechanical device, and you may double productivity. But improve man, you gain a thousandfold.” Most of our hacks center on the mechanical or electromechanical kind, but we do have an interest in safely improving ourselves. The problem is that most o... | 17 | 9 | [
{
"comment_id": "6496278",
"author": "goat",
"timestamp": "2022-07-24T05:21:55",
"content": "no question my dislexic brain reads that bionic shit much slower",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6496354",
"author": "Mungojerry",
"ti... | 1,760,372,619.546562 | ||
https://hackaday.com/2022/07/23/adding-a-battery-to-extend-speaker-life/ | Adding A Battery To Extend Speaker Life | Bryan Cockfield | [
"Battery Hacks"
] | [
"3d printed",
"battery",
"battery management",
"bms",
"JBL",
"phone",
"repair",
"speaker"
] | Perhaps the weakest point in modern electronics when it comes to user servicability is the lifecycle of the batteries included from the manufacturer. Without easily replaceable batteries, many consumer goods end up in the landfill when they’re otherwise working perfectly. If you’d like to get more out of your devices t... | 14 | 5 | [
{
"comment_id": "6496337",
"author": "BigDooof12",
"timestamp": "2022-07-24T09:31:07",
"content": "I have a Streetz CM730 speaker I like to repair (Yeah, I know it’s crap)But I can find a way to open it up. There are no obvious screws or places to crack it apart.I can of course use force, but then i... | 1,760,372,619.301699 | ||
https://hackaday.com/2022/07/23/digital-toy-camera-made-for-tilt-shift-and-other-analog-like-experimenting/ | Digital “Toy” Camera, Made For Tilt-Shift And Other Analog-Like Experimenting | Donald Papp | [
"digital cameras hacks",
"how-to",
"Raspberry Pi"
] | [
"3d printed",
"digital camera",
"diy",
"lomography",
"raspberry pi",
"rise-fall lens",
"tilt-shift",
"toy camera"
] | Like many others, [volzo] loves playing with photography in a playful and experimental way. Oddball lenses, vintage elements, and building from kits is what that world looks like. But that kind of stuff is really the domain of film cameras, or at least it was until [volzo] created his
Digital Toy Camera
design. The res... | 5 | 2 | [
{
"comment_id": "6496251",
"author": "Nicholas Sherlock",
"timestamp": "2022-07-24T00:56:52",
"content": "You can actually 3D-print perfectly capable M12x0.75 threads directly, without using a tap. I’ve got one on my desk I’m using with the lens from an actioncam, printed at 0.1mm layer height.",
... | 1,760,372,619.596461 |
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